SERVICE MANUAL - Nexo

NXAMP4x416. Lower left DC Fan(Time required: about 23 minutes)16-1. Remove the top cover and the NX-DFLT card.(See procedure 1.)16-2. Remove the CONTROL circuit board and the OPTangle. (See procedure 2.)16-3. Remove the PSANHA circuit board. (See procedure 3.)16-4. Remove the front panel assembly. (See procedure 12.)16-5. Remove the upper left DC fan. (See procedure 14.)16-6. Disconnect the lower left DC fan connector assemblyfrom the PSANHB circuit board. (Fig. 11)16-7. Remove the two (2) screws marked [40C] and the two(2) hexagonal nuts marked [50C]. The lower left DCfan can then be removed. (Fig. 11)17. Lower right DC Fan(Time required: about 23 minutes)17-1. Remove the top cover and the NX-DFLT card.(See procedure 1.)17-2. Remove the CONTROL circuit board and the OPTangle. (See procedure 2.)17-3. Remove the PSANHA circuit board. (See procedure 3.)17-4. Remove the front panel assembly. (See procedure 12.)17-5. Remove the upper right DC fan. (See procedure 15.)17-6. Disconnect the lower right DC fan connector assemblyfrom the PSANHB circuit board. (Fig. 11)17-7. Remove the two (2) screws marked [40D] and the two(2) hexagonal nuts marked [50D]. The lower right DCfan can then be removed. (Fig. 11) [50C]DC fan [50C][40C][50D][40D][50D]DC fan [40C]:[40D]:[50C]:[50D]:BIND HEAD SCREW 4x16 MFZN2W3 SP (--) BIND HEAD SCREW 4x16 MFZN2W3 SP (--) HEXAGONAL NUT M4 #1 (--) HEXAGONAL NUT M4 #1 (--) Fig. 11 35